/Engine/Source/Runtime/AudioMixer/Public/AudioMixerBlueprintLibrary.h
Returns the number of effect chain entries in the given source effect chain.
static int32 GetNumberOfEntriesInSourceEffectChain ( const [UObject](API\Runtime\CoreUObject\UObject\UObject) * WorldContextObject, [USoundEffectSourcePresetChain](API\Runtime\Engine\Sound\USoundEffectSourcePresetChain) * PresetChain )